Install
Since Certbot is packaged for your system, all you'll need to do is apt-get the following packages.
$ sudo apt-get install python-certbot-apache
Get Started
Certbot has a fairly solid beta-quality Apache plugin, which is supported on many platforms, and automates both obtaining and installing certs:
$ sudo certbot --apache
Running this command will get a certificate for you and have Certbot edit your Apache configuration automatically to serve it. If you're feeling more conservative and would like to make the changes to your Apache configuration by hand, you can use the certonly subcommand:
$ sudo certbot --apache certonlyTo learn more about how to use Certbot read our documentation.
Automating renewal
The Certbot packages on your system come with a cron job that will renew your certificates automatically before they expire. Since Let's Encrypt certificates last for 90 days, it's highly advisable to take advantage of this feature. You can test automatic renewal for your certificates by running this command:
$ sudo certbot renew --dry-runIf that appears to be working correctly, you can arrange for automatic renewal by adding a cron or systemd job which runs the following:
certbot renew
More detailed information and options about renewal can be found in the full documentation.